Home / 514,048.07-709,386.24-287,693.57

Finding the Fourth Proportional to 514,048.07, 709,386.24 and 287,693.57

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Solution

The fourth proportional to 514,048.07, 709,386.24 and 287,693.57 is: 397,017.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,048.07 : 709,386.24 = 287,693.57 : x
  2. Step 2: Convert to fraction form
    514,048.07/709,386.24 = 287,693.57/x
  3. Step 3: Cross multiply
    514,048.07x = 709,386.24 × 287,693.57
  4. Step 4: Simplify right side
    514,048.07x = 204,085,859,894.48
  5. Step 5: Solve for x
    x = 204,085,859,894.48/514,048.07
  6. Step 6: Final answer
    x = 397,017.07

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.